TW200732312A - Method for sulfonation of 1,2-benzisoxazole-3-acetic acid - Google Patents
Method for sulfonation of 1,2-benzisoxazole-3-acetic acidInfo
- Publication number
- TW200732312A TW200732312A TW095134102A TW95134102A TW200732312A TW 200732312 A TW200732312 A TW 200732312A TW 095134102 A TW095134102 A TW 095134102A TW 95134102 A TW95134102 A TW 95134102A TW 200732312 A TW200732312 A TW 200732312A
- Authority
- TW
- Taiwan
- Prior art keywords
- benzisoxazole
- acetic acid
- sulfonation
- acid
- nitrile
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/20—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
A method for efficiently preparing 1,2-benzisoxa2ole-3-methane-sulfonic acid, which comprises reacting 1,2-benzisoxazole-3-acetic acid in toluene with chlorosulfonic acid, which may optionally be mixed with an inert solvent, in the presence of a specific Lewis base(ester or nitrile).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71720705P | 2005-09-16 | 2005-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200732312A true TW200732312A (en) | 2007-09-01 |
Family
ID=37865025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095134102A TW200732312A (en) | 2005-09-16 | 2006-09-14 | Method for sulfonation of 1,2-benzisoxazole-3-acetic acid |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1935888A4 (en) |
JP (1) | JP5137576B2 (en) |
KR (1) | KR20080046175A (en) |
CN (1) | CN101263128B (en) |
IL (1) | IL189767A0 (en) |
TW (1) | TW200732312A (en) |
WO (1) | WO2007032441A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6033114B2 (en) * | 1976-12-16 | 1985-08-01 | 大日本製薬株式会社 | 1,2-benzisoxazole derivative |
US4172896A (en) * | 1978-06-05 | 1979-10-30 | Dainippon Pharmaceutical Co., Ltd. | Methane-sulfonamide derivatives, the preparation thereof and composition comprising the same |
WO2003020708A1 (en) * | 2001-08-30 | 2003-03-13 | Teva Pharmaceutical Industries Ltd. | Zonisamide intermediate and synthesis |
US6841683B2 (en) * | 2001-08-30 | 2005-01-11 | Teva Pharmaceutical Industries Ltd. | Sulfonation method for zonisamide intermediate in zonisamide synthesis and their novel crystal forms |
US7015330B2 (en) * | 2001-08-30 | 2006-03-21 | Teva Pharmaceutical Industries Ltd. | Sulfonation method for zonisamide intermediate in zonisamide synthesis and their novel crystal forms |
BR0318576A (en) * | 2003-11-11 | 2006-10-10 | Wockhardt Ltd | Process for the manufacture of 1,2-benzisoxazole-3-methanesulfonamide |
-
2006
- 2006-09-14 TW TW095134102A patent/TW200732312A/en unknown
- 2006-09-14 CN CN2006800335070A patent/CN101263128B/en not_active Expired - Fee Related
- 2006-09-14 JP JP2007535540A patent/JP5137576B2/en active Active
- 2006-09-14 WO PCT/JP2006/318280 patent/WO2007032441A1/en active Application Filing
- 2006-09-14 KR KR1020087005379A patent/KR20080046175A/en not_active Application Discontinuation
- 2006-09-14 EP EP06797992A patent/EP1935888A4/en not_active Withdrawn
-
2008
- 2008-02-26 IL IL189767A patent/IL189767A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP1935888A1 (en) | 2008-06-25 |
CN101263128A (en) | 2008-09-10 |
WO2007032441A1 (en) | 2007-03-22 |
JP5137576B2 (en) | 2013-02-06 |
IL189767A0 (en) | 2008-08-07 |
KR20080046175A (en) | 2008-05-26 |
JPWO2007032441A1 (en) | 2009-03-19 |
EP1935888A4 (en) | 2011-07-13 |
CN101263128B (en) | 2011-02-16 |
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